MRG: Fix custom inverse solver #6023
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agramfort
approved these changes
Mar 4, 2019
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The regularization term had no dependence on the scale of the whitened gain matrix, so when #5947 added the
trace_GRGTscaling to thesource_covit broke the solver by effectively over-regularizing. This makes the solver invariant to scale and restores the right hemi sources.FWIW the solution depends quite a bit on the particular regularization value.